Modular building structure



FIG. 1 is a perspective view taken from above one embodiment of the design of my invention;

FIG. 2 is a top plan view of a multi-level embodiment of the design of FIG. 1;

FIG. 3 is a top plan view of a single level, multi-unit embodiment of the design of FIG. 1;

FIG. 4 is a perspective view of the bottom structure of the embodiments shown in FIGS. 5 and 6;

FIG. 5 is a perspective view taken from above another embodiment of the design of my invention;

FIG. 6 is a top plan view of the article of FIG. 5.

FIG. 7 is a front elevational view of the embodiment of FIG. 1;

FIG. 8 is a side elevational view of the structure of FIGS. 1 and 7;

FIG. 9 is a front elevational view of the embodiment shown in FIGS. 5 and 6;

FIG. 10 is a side elevational view of the structure of FIGS. 5, 6 and 9.

The bottom views of the articles of FIGS. 1 and 6 are plain and identical in outline to the top plan views of these figures. 

The ornamental design for a modular building structure, as shown and described. 